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公开(公告)号：MY121414A
公开(公告)日：2006-01-28
申请号：MYPI9903913
申请日：1999-09-09
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TETSUYA , HOSOKAWA HIROFUMI , HIGASHIOJI TAKUJI
Abstract: AN OBJECT OF THE PRESENT INVENTION IS TO PROVIDE A BIAXIALLY ORIENTED HIGH QUALITY POLYESTER FILM EXCELLENT IN THERMAL DIMENSIONAL STABILITY AND CLARITY AND ALSO EXCELLENT IN PRODUCTIVITY, AND ALSO TO PROVIDE A PRODUCTION PROCESS THEREOF. ANOTHER OBJECT IS TO PROVIDE A BIAXIALLY ORIENTED POLYESTER FILM GREATLY IMPROVED IN THE PRACTICAL PROPERTIES RESPECTED IN VARIOUS APPLICATIONS OF THE POLYESTER FILM, SUCH AS THE RECORDING TRACK SHIFT IN MAGNETIC RECORDING TAPE APPLICATION, CURLING IN MAGNETIC RECORDING CARD APPLICATION, DIMENSIONAL CHANGE DURING PROCESS IN PRINTING PLATE APPLICATION, PRINTING SHIFT IN RIBBON APPLICATION, THERMOSTABILITY IN CAPACITOR APPLICATION, AND PERFORATION SENSITIVITY AND LOW TEMPERATURE CURLING IN HEAT-SENSITIVE MIMEOGRAPH STENCIL APPLICATION. THE OBJECTS OF THE PRESENT INVENTION CAN BE ACHIEVED BY A BIAXIALLY ORIENTED POLYESTER FILM, COMPRISING A POLYESTER (A) MAINLY COMPOSED OF ETHYLENE TEREPHTHALATE AND A POLYETHER IMIDE (B), HAVING A SINGLE GLASS TRANSITION TEMPERATURE, AND HAVING A REFRACTIVE INDEX OF 1.60 TO 1.80 AT LEAST IN EITHER THE MACHINE DIRECTION OR THE TRANSVERSE DIRECTION.
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公开(公告)号：DE60029920D1
公开(公告)日：2006-09-21
申请号：DE60029920
申请日：2000-04-18
Applicant: TORAY INDUSTRIES
Inventor： SUGII HIKARU , KOTOURA MASAAKI , HOSOKAWA HIROFUMI , TSUNEKAWA TETSUYA
Abstract: The object of this invention is to provide a biaxially oriented polyester film suitable as a base film for high density magnetic recording media, small in track deviation and excellent in traveling durability and preservability, and to provide a production method thereof. The object of this invention can be achieved by a biaxially oriented polyester film, characterized in that the dimensional change rate (A) in the transverse direction of the film is in a range of -0.3 to 0% when the film is allowed to stand at 49 DEG C and 90% RH for 72 hours, while being loaded with 32 MPa in the machine direction.
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公开(公告)号：DE60029920T2
公开(公告)日：2007-02-22
申请号：DE60029920
申请日：2000-04-18
Applicant: TORAY INDUSTRIES
Inventor： SUGII HIKARU , KOTOURA MASAAKI , HOSOKAWA HIROFUMI , TSUNEKAWA TETSUYA
Abstract: The object of this invention is to provide a biaxially oriented polyester film suitable as a base film for high density magnetic recording media, small in track deviation and excellent in traveling durability and preservability, and to provide a production method thereof. The object of this invention can be achieved by a biaxially oriented polyester film, characterized in that the dimensional change rate (A) in the transverse direction of the film is in a range of -0.3 to 0% when the film is allowed to stand at 49 DEG C and 90% RH for 72 hours, while being loaded with 32 MPa in the machine direction.
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公开(公告)号：DE69936497D1
公开(公告)日：2007-08-23
申请号：DE69936497
申请日：1999-09-09
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TESTUYA , HOSOKAWA HIROFUMI , HIGASHIOJI TAKUJI
Abstract: A biaxially oriented polyester film, comprising a polyester (A) at least mainly composed of ethylene terephthalate and a polyether imide (B), having a single glass transition temperature, and having a refractive index of 1.60 to 1.80 at least in either the machine direction or the transverse direction, has excellent thermal dimensional stability, clarity and is easy to produce. It can be prepared by melt-extruding a polyester (A) at least mainly composed of ethylene terephthalate and polyether imide (B), to mold a resin sheet with a single glass transition temperature, and stretching the resin sheet at a ratio of 3.0 to 10 times in the machine direction and at a ratio of 3.0 to 10 times in the transverse direction.
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公开(公告)号：CA2282171A1
公开(公告)日：2000-03-11
申请号：CA2282171
申请日：1999-09-10
Applicant: TORAY INDUSTRIES
Inventor： HIGASHIOJI TAKUJI , HOSOKAWA HIROFUMI , TSUNEKAWA TETSUYA
Abstract: Disclosed is a biaxially oriented film made of (A) a polyester mainly composed of ethylene terephthalate and (B) a polyether imide and having a single glass transition temperature, a refractive index of 1.60 to 1.80 at least in either a machine direction or a transverse direction. The biaxially oriented film is excellent in thermal dimensional stability, clarity and productivity, and is suitable for use in magnetic recording tape, magnetic recording card, printing plate, ribbon, capacitor, heat-sensitive mimeograph stencil or the like.
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Patent Agency Ranking
公开(公告)号：DE69936497T2
公开(公告)日：2008-04-03
申请号：DE69936497
申请日：1999-09-09
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TESTUYA , HOSOKAWA HIROFUMI , HIGASHIOJI TAKUJI
Abstract: A biaxially oriented polyester film, comprising a polyester (A) at least mainly composed of ethylene terephthalate and a polyether imide (B), having a single glass transition temperature, and having a refractive index of 1.60 to 1.80 at least in either the machine direction or the transverse direction, has excellent thermal dimensional stability, clarity and is easy to produce. It can be prepared by melt-extruding a polyester (A) at least mainly composed of ethylene terephthalate and polyether imide (B), to mold a resin sheet with a single glass transition temperature, and stretching the resin sheet at a ratio of 3.0 to 10 times in the machine direction and at a ratio of 3.0 to 10 times in the transverse direction.
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公开(公告)号：CA2282171C
公开(公告)日：2008-02-05
申请号：CA2282171
申请日：1999-09-10
Applicant: TORAY INDUSTRIES
Inventor： HOSOKAWA HIROFUMI , TSUNEKAWA TETSUYA , HIGASHIOJI TAKUJI
IPC: C08J5/18 , B29C55/12 , B41M5/41 , B41N1/24 , C08L67/02 , C08L79/08 , G11B5/70 , G11B5/73 , H01G4/018
Abstract: Disclosed is a biaxially oriented film made of (A) a polyester mainly composed of ethylene terephthalate and (B) a polyether imide and having a single glass transition temperature, a refractive index of 1.60 to 1.80 at least in either a machine direction or a transverse direction. The biaxially oriented film is excellent in thermal dimensional stability, clarity and productivity, and is suitable for use in magnetic recording tape, magnetic recording card, printing plate, ribbon, capacitor, heat-sensitive mimeograph stencil or the like.
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公开(公告)号：ID23276A
公开(公告)日：2000-04-05
申请号：ID990858
申请日：1999-09-10
Applicant: TORAY INDUSTRIES
Inventor： TSUNEKAWA TETSUYA , HOSOKAWA HIROFUMI , HIGASHIOJI TAKUJI
Abstract: A biaxially oriented polyester film, comprising a polyester (A) at least mainly composed of ethylene terephthalate and a polyether imide (B), having a single glass transition temperature, and having a refractive index of 1.60 to 1.80 at least in either the machine direction or the transverse direction, has excellent thermal dimensional stability, clarity and is easy to produce. It can be prepared by melt-extruding a polyester (A) at least mainly composed of ethylene terephthalate and polyether imide (B), to mold a resin sheet with a single glass transition temperature, and stretching the resin sheet at a ratio of 3.0 to 10 times in the machine direction and at a ratio of 3.0 to 10 times in the transverse direction.
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公开(公告)号：EP1640152A4
公开(公告)日：2008-04-23
申请号：EP04745498
申请日：2004-06-02
Applicant: TORAY INDUSTRIES
Inventor： OSADA SHUNICHI , MAKIYAMA CHIE , HOSOKAWA HIROFUMI , TSUNEKAWA TETSUYA
CPC classification number: B32B27/36 , B32B27/08 , B32B2250/05 , B32B2250/244 , B32B2274/00 , B32B2307/406 , B32B2307/412 , B32B2307/518 , B32B2307/536 , B32B2307/704 , B32B2307/734 , B32B2307/738 , B32B2429/00 , B32B2439/00 , B32B2457/10 , B32B2479/00 , B32B2553/00 , B32B2581/00 , H01M2/0257 , H01M2/0267 , H01M2/0275 , H01M2/0287 , H01M10/052 , H01M10/0525 , Y10S428/91 , Y10T428/24942 , Y10T428/2495 , Y10T428/26 , Y10T428/31786
Abstract: An objective of the present invention is to provide a film that has a high rigidity and is superior in dimension stability under high temperatures and transparency after heating processes, as well as in moldability within a wide temperature range, which has not been achieved by conventional techniques, and this objective has been achieved by a laminated film that includes 50 or more layers each of which is made of a thermoplastic resin and has a thickness of less than 30 nm or a biaxial oriented polyester film that has a density in a range from 1 to 1. 4 g/cm 3 , a heat shrinkage of - 2 to 2% in the longitudinal direction at 180°C and a breaking elongation in a range of 100 to 1000% in at least one direction.
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10.发明公开BIAXIALLY ORIENTED POLYESTER FILM, PROCESS FOR PRODUCING THE SAME, AND MAGNETIC RECORDING MEDIUM 有权双轴取向聚酯膜，METHOD FOR THEIR和磁性记录介质
公开(公告)号：EP1122051A4
公开(公告)日：2005-04-27
申请号：EP00919131
申请日：2000-04-18
Applicant: TORAY INDUSTRIES
Inventor： SUGII HIKARU , KOTOURA MASAAKI , HOSOKAWA HIROFUMI , TSUNEKAWA TETSUYA
CPC classification number: G11B5/73 , Y10S428/91 , Y10T428/2495 , Y10T428/31721 , Y10T428/31786
Abstract: A biaxially oriented polyester film suitable for use as a base film for media for high-density magnetic recording, which is reduced in track shifting and excellent in running durability and storage stability. The biaxially oriented polyester film has a width-direction dimensional change (A) of -0.3 to 0 % through 72-hour standing at 49 DEG C and 90 % RH under a machine-direction load of 32 MPa.
Abstract translation: 本发明的目的是提供适合作为用于高密度磁记录介质，在磁道偏移小，具有优异的传输耐久性和维护的基膜的双轴取向聚酯膜，及其提供的制造方法。 本发明的目的可以通过双轴取向聚酯薄膜来实现，在DASS其特征在于所述膜的横向方向上死尺寸变化率（A）是在一个范围的-0.3〜0％当膜静置在 49℃和90％RH 72小时，而在机器方向上被加载有32兆帕。
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